Parameter a = waist circumference (cm) × 0.74, parameter b = body weight (kg) × 0.082+34.89, and body fat weight (kg) = a-b.
2. The calculation formula of adult male body fat rate: body fat rate = (total body fat weight/body weight) × 100%.
Parameter a = waist circumference (cm) × 0.74, parameter b = body weight (kg) × 0.082+44.74, and body fat weight (kg) = a-b.
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Extended data:
Here are three specific methods to measure obesity. You can choose your own officials and know your own size.
First, the easiest way: look at the waist circumference.
Generally speaking, the normal waist circumference is: men do not exceed 85 cm. If your waist circumference exceeds 90 cm, it means that you are obese and need to be controlled. It is acceptable for women to have a waist circumference of less than 80 cm. If it exceeds 85 cm, it may be defined as obesity.
Second, the most commonly used method: body mass index (BMI).
This is a numerical value calculated according to the data of human height and weight. The calculation method is body mass index = = weight (kg)/height 2 (m).
The relationship between the index and the degree of obesity is as follows:
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This data can roughly reflect the obesity level of an ordinary person-as long as your body mass index is in the range of 18 ~ 24, it is normal. If it is less than 18, it is judged as emaciated, and if it is greater than 24, it is judged as overweight.
However, the body mass index (BMI) can hardly be used as a reference for fitness hobbies. Because the proportion of muscle and fat is different between people who have fitness habits and those who don't exercise regularly. Because of muscular development, these people are usually heavier than ordinary people, so the calculation result of body mass index can easily exceed 24, but they can't be called "fat people".
Third, the most accurate method: body fat rate.
Of course, this is not the measurement results of high-end equipment. People can also test their body fat percentage at home by some simple methods.
An effective method is to borrow sebum forceps to measure the data of two parts of the body, and then substitute it into the formula to get a relatively accurate body fat rate.
Body fat rate is a relatively accurate data that can reflect the degree of obesity.
The specific method is to measure the upper arm (muscle belly of triceps brachii, that is, above the arm fossa of the big arm) and the back (below the scapular angle) with sebum forceps, and the data unit is millimeters.
After obtaining the data, the measured data is used to calculate the body density, and then it can be used to calculate the body fat rate.
After getting the body fat rate, you can intuitively show the degree of your body obesity. Generally speaking, the body fat rate of adults is 15% ~ 18% for men and 25% ~ 28% for women. If your body fat rate is within this range, it means that your figure is relatively standard, but if the value is beyond this range, you may really need to start losing weight.
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